Mounted in a black lacquered sheath (saya) (ro-iro), the fuchi kashira "en-suite" with insect decoration, a double habaki in gold and silver, a tsuba in shibuishi chiseled in the round representing Kwanyu enhanced with , gold, silver and shakudo. The kozuka in shibuishi and gold and silver represents Shoki on horseback is signed Nao-Yoshi, the menuki are decorated with a peacock. The entire frame is certified by a Hozon.
The blade in shinogi zukuri, nagasa of 40,7cm, sakihaba 1,9cm, motohaba 2,6cm, the nakago is suriage and has 3 mekugi ana. The temper is gunome midare. It is attributed to Jumyo by a hozon. Period : mid Edo 17th / 18th century